{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2023-2283",
        "ASSIGNER": "secalert@redhat.com",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "libssh",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "libssh-2"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-287"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://access.redhat.com/security/cve/CVE-2023-2283",
                "url": "https://access.redhat.com/security/cve/CVE-2023-2283"
            },
            {
                "refsource": "MISC",
                "name": "https://www.libssh.org/security/advisories/CVE-2023-2283.txt",
                "url": "https://www.libssh.org/security/advisories/CVE-2023-2283.txt"
            },
            {
                "refsource": "MISC",
                "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2189736",
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2189736"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2023-5fa5ca2043",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/"
            },
            {
                "refsource": "MISC",
                "name": "http://packetstormsecurity.com/files/172861/libssh-0.9.6-0.10.4-pki_verify_data_signature-Authorization-Bypass.html",
                "url": "http://packetstormsecurity.com/files/172861/libssh-0.9.6-0.10.4-pki_verify_data_signature-Authorization-Bypass.html"
            },
            {
                "refsource": "GENTOO",
                "name": "GLSA-202312-05",
                "url": "https://security.gentoo.org/glsa/202312-05"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20240201-0005/",
                "url": "https://security.netapp.com/advisory/ntap-20240201-0005/"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A vulnerability was found in libssh, where the authentication check of the connecting client can be bypassed in the`pki_verify_data_signature` function in memory allocation problems. This issue may happen if there is insufficient memory or the memory usage is limited. The problem is caused by the return value `rc,` which is initialized to SSH_ERROR and later rewritten to save the return value of the function call `pki_key_check_hash_compatible.` The value of the variable is not changed between this point and the cryptographic verification. Therefore any error between them calls `goto error` returning SSH_OK."
            }
        ]
    }
}